Electrical-fixture construction



Nov. 12, 1929. H. J. MOREY 1,735,260

ELECTRICAL FIXTURE CONSTRUCTION Filed Jim 12, 1924 fig n A TTORNEY6,

Patented Nov. 12, 1929 1 UNITED STATES PATENT OFFICE HARRY J'. MOREY, FSYRACUSE, NEW YORK, ASSIGNOB TO PASS & SEYMOUR, INC. OFSOLVAY, NEW YORK,A'CORPORATION OF NEW YORK ELECTRICAL-FIXTURE CONSTRUCTION Applicationfiled June 12, 1924. 7 Serial No. 719,670.

This invention relates to electrical fixtures, and has for its object aparticularly simple and eflicient construction by which the fixture isreadily attachable to a support,and by which an attaching member for anelectrical appliance as a lamp or other applianceis assembled in thebase to produce a simple compact arrangement.

The invention consists in the novel features and in the combinations andconstructions hereinafter set forth and claimed.

In describing this invention reference is had to the accompanyingdrawings in'which like characters designate corresponding parts in allthe views.

Figure 1 is a sectional view of this fixture, the same being shown asattached to a support on a wall or ceiling.

Figure 2 is an inner face View of the base.

This invention comprises generally a base having means for attachment toa support on a wall or ceiling or other part by an inter-. lockingmovement as a partial rotary movement of the base, and also a simplerelative arrangement of an attaching member for an electrical. appliancewith respect to said means.

1 designates the base .which is usually formed up of comparatively lightsheet metal in the form of a canopy, the base having a The means forattaching tubular neck 2. the base to a support comprising a partassociated with the base and arranged on the interior of the base at theinner end of the passage of the neck 2, and provided with means forinterlocking with a support for the fixture by a partial rotary movementof the base. The part associated with the base is here shown as a bridge3 extending across the passage of the neck at the inner end thereof, andsecured as at its ends to the base by suitable means as rivets 4. Thebridge is here shown as formed with open ended slots 5, which arepreferably arc-shaped and arranged opposite each other and curved otherthrough the opposite side edge. 00

about the samecenter which is usually the center of the base. Theseslots open through opposite side edges of the bridge, that is one slotopens through one side edge and the The support for interlocking withthe base or the bridge 3, as here shown includes headed members as rodsor screws 6 threading into a collar 7 on a nipple 8 which is secured toa wall or ceiling, it usually threading into a plate or box 9 secured toa wall or ceiling 10 in any suitable manner as by screws 11. The collar7 usually threads on the nipple 8 and is secured thereto againstunintentional turning by a set screw 12. The plate or box '60 9 isprovided with inlet and outlet openings for electric wires or forconduits 13 enclosing said wires. I

In applying the base 1 to a ceiling the collar 7 is first attached tothe nipple with the screws thereon, and then the base is secured tothese screws, by a partial rotary the screws. 7

Preferably the entrance ends of the slots are widened for facilitatingthe entrance of the screws 6 therein.

appliance, as a'lamp socket. These casings being provided with varioustypes of contacting or compression members for interlocking with anattaching member as a ring carried by a fixture usually by a partialrotary movement as will be understood by those skilled in the art.

'15 designates the attaching member formed in any suitable manner tointerlock with the 55 case 14.

The attaching member is arranged in the neck 2 and thrusts at its outeredge against an internal annular flange 16 at the outer end of the neckand has means for interlocki 90 14 designates the casing of anyelectrical ing with the bridge to prevent turning of the attachingmember.

The means for interlocking the attaching ring 15 with the bridge 3 ashere shown comprises shoulders 17 usually struck from the bridge 3,these shoulders projecting toward the ring, and lugs on the ring forinterlocking with the shoulders. Preferably thering is formed withdiametrically opposite arms 18 extending from the ring toward thebridge, these arms terminating in laterally turned feet or lugs 19 whichare notched or formed with bifurcations for embracing the shoulders 17.

As the base 1 is formed of comparatively light sheet metal, preferably areinforcing ring 20 is located in the neck 2 between the attaching ring15 and the neck, the reinforcing ring thrusting at its lower end againstthe flange 16 and at its upper end against the bridge In assembling theparts, the reinforcing ring is placed in the neck from the inner sidethereof, and also the attaching ring 15, and the bridge is then placedin position with the shoulders 17 in the notches of the lugs 19, and thebridge secured in position by the rivets a.

This construction of electrical fixtures is particularly advantageous inthat it consists of but a few simple parts which are readily assembledand when assembled the attaching ring is held from movement, withoutattaching to the base itself. It is further advantageous in that it canbe readily attached to a support by an interlocking movement.

What I claim is: a

1. An electrical fixture comprising a canopy formed with a neck, abridge extending diametrically across the neck at the inner end thereofand secured at its ends to the canopy, the bridge having means forsecurement to a support upon partial rotary movement of the canopy andthe neck also having means for securing the casing of a lamp socketthereto, the last mentioned means comprising a ring and located in theneck, in the inner end thereof adjacent the bridge, the brid e and thering having interlocking parts.

2. An electrical fixture, comprising a base formed with a neck having aninternal annular flange at its outer end, an annular attaching memberfor an electrical appliance lo cated in the neck and thrusting againstsaid flange, bridge located in the base and extending across the passageof the neck, the bridge being formed with shoulders extending towardsaid member, and said member being formed with arms terminating inlaterally turned lugs interlocking with said shoulders.

3. An electrical fixture, comprising a base formed with a tubular neckhaving an internal annular fi'ange at its outer end, a reinf'o'rcingringlocated within the neck and abutting against the flange, an attachingring

